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Peripheral blood morphology

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https://www.readbyqxmd.com/read/29332353/aesculetin-6-7-dihydroxycoumarin-exhibits-potent-and-selective-antitumor-activity-in-human-acute-myeloid-leukemia-cells-thp-1-via-induction-of-mitochondrial-mediated-apoptosis-and-cancer-cell-migration-inhibition
#1
Jian Gong, Wei-Guo Zhang, Xiao-Fen Feng, Mei-Juan Shao, Chao Xing
PURPOSE: The main target of the present research was to examine the antitumor properties of aesculetin in human acute myeloid leukemia cancer cells (THP-1) and peripheral blood mono-nucleated cells (PBMCs) (used as normal cell line model) along with the determination of its effects on induction of apoptosis, inhibition of cancer cell migration and changes in Bcl-2/Bax protein expressions. METHODS: MTT colorimetric bioassay was performed to study the impact of this natural compound on cytotoxicity of both cell types...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29323138/whole-mount-adult-ear-skin-imaging-reveals-defective-neuro-vascular-branching-morphogenesis-in-obese-and-type-2-diabetic-mouse-models
#2
Tomoko Yamazaki, Wenling Li, Ling Yang, Ping Li, Haiming Cao, Sei-Ichiro Motegi, Mark C Udey, Elise Bernhard, Takahisa Nakamura, Yoh-Suke Mukouyama
Obesity and type 2 diabetes are frequently associated with peripheral neuropathy. Though there are multiple methods for diagnosis and analysis of morphological changes of peripheral nerves and blood vessels, three-dimensional high-resolution imaging is necessary to appreciate the pathogenesis with an anatomically recognizable branching morphogenesis and patterning. Here we established a novel technique for whole-mount imaging of adult mouse ear skin to visualize branching morphogenesis and patterning of peripheral nerves and blood vessels...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320840/microvascular-damage-evaluation-in-systemic-sclerosis-the-role-of-nailfold-videocapillaroscopy-and-laser-techniques
#3
B Ruaro, A Sulli, V Smith, C Pizzorni, S Paolino, E Alessandri, M Cutolo
Microvascular damage and a decrease in peripheral blood perfusion are typical features of systemic sclerosis (SSc) with serious clinical implications, not only for a very early diagnosis, but also for disease progression. Nailfold videocapillaroscopy is a validated and safe imaging technique able to detect peripheral capillary morphology, as well as to classify and to score any nailfold abnormalities into different microangiopathy patterns. Capillaroscopic analysis is now included in the ACR/EULAR classification criteria for SSc...
December 21, 2017: Reumatismo
https://www.readbyqxmd.com/read/29316233/development-and-biocompatibility-evaluation-of-biodegradable-bacterial-cellulose-as-a-novel-peripheral-nerve-scaffold
#4
Yuanjing Hou, Xinyu Wang, Jing Yang, Rong Zhu, Zongrui Zhang, Yi Li
Peripheral nerve injury is a serious medical problem and severely affects normal life of patient. Bacterial cellulose (BC) is considered as a novel promising biomaterial for tissue engineering, but the poor biodegradability limits its application. In this study, biodegradable bacterial cellulose scaffolds were prepared with different oxidation degrees (O.Ds.) using sodium periodate, evaluating their potential application in peripheral nerve repair. The chemical structure and surface morphology of the oxidized bacterial cellulose (OBC) scaffolds were characterized using Fourier transform infrared spectroscopy, Wide angle X-ray diffraction and Scanning electron microscope...
January 9, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29304398/generation-of-human-induced-pluripotent-stem-cells-euraci001-a-euraci002-a-euraci003-a-from-peripheral-blood-mononuclear-cells-of-three-patients-carrying-mutations-in-the-cav3-gene
#5
Viviana Meraviglia, Patrizia Benzoni, Sara Landi, Carmen Murano, Marianna Langione, Benedetta M Motta, Serena Baratto, Rosamaria Silipigni, Marina Di Segni, Peter P Pramstaller, Dario DiFrancesco, Elisabetta Gazzerro, Andrea Barbuti, Alessandra Rossini
Caveolinopathies are a heterogeneous family of genetic pathologies arising from alterations of the caveolin-3 gene (CAV3), encoding for the isoform specifically constituting muscle caveolae. Here, by reprogramming peripheral blood mononuclear cells, we report the generation of induced pluripotent stem cells (iPSCs) from three patients carrying the ΔYTT deletion, T78K and W101C missense mutations in caveolin-3. iPSCs displayed normal karyotypes and all the features of pluripotent stem cells in terms of morphology, specific marker expression and ability to differentiate in vitro into the three germ layers...
December 18, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29287997/marinobufagin-a-molecule-from-poisonous-frogs-causes-biochemical-morphological-and-cell-cycle-changes-in-human-neoplasms-and-vegetal-cells
#6
Paulo Michel Pinheiro Ferreira, Kátia da Conceição Machado, Lívia Queiroz de Sousa, Daisy Jereissati Barbosa Lima, Bruno Marques Soares, Bruno Coêlho Cavalcanti, Sarah Sant' Anna Maranhão, Janaina da Costa de Noronha, Domingos de Jesus Rodrigues, Gardenia Carmen Gadelha Militão, Mariana Helena Chaves, Gerardo Magela Vieira-Júnior, Cláudia Pessoa, Manoel Odorico de Moraes, João Marcelo de Castro E Sousa, Ana Amélia de Carvalho Melo-Cavalcante
Skin toad secretion present physiologically active molecules to protect them against microorganisms, predators and infections. This work detailed the antiproliferative action of marinobufagin on tumor and normal lines, investigate its mechanism on HL-60 leukemia cells and its toxic effects on Allium cepa meristematic cells. Initially, cytotoxic action was assessed by colorimetric assays. Next, HL-60 cells were analyzed by morphological and flow cytometry techniques and growing A. cepa roots were examined after 72 h exposure...
December 26, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/29284781/dna-damage-in-tumor-cells-and-peripheral-blood-lymphocytes-of-endometrial-cancer-patients-assessed-by-the-comet-assay
#7
L G Buchynska, O V Brieieva, N P Iurchenko, V V Protsenko, S V Nespryadko
To date, genome instability is considered to be a common feature not only of tumor cells, but also of non-malignant cells of cancer patients, including peripheral blood lymphocytes (PBLs). The issue of the association between genome instability in tumor cells and PBLs, as well as of its relationship with tumor progression remains poorly understood. AIM: To evaluate the level DNA damage in tumor cells and PBLs of endometrial cancer (EC) patients with regard to clinical and morphological characteristics of the patients...
December 2017: Experimental Oncology
https://www.readbyqxmd.com/read/29278889/erythromyeloid-derived-trem2-a-major-determinant-of-alzheimer-s-disease-pathology-in-down-syndrome
#8
Ruma Raha-Chowdhury, James W Henderson, Animesh Alexander Raha, Simon R W Stott, Romina Vuono, Simona Foscarin, Liam Wilson, Tiina Annus, Robert Fincham, Kieren Allinson, Vinod Devalia, Robert P Friedland, Anthony Holland, Shahid H Zaman
BACKGROUND: Down syndrome (DS; trisomy 21) individuals have a spectrum of hematopoietic and neuronal dysfunctions, and by the time they reach the age of 40 years, almost all develop Alzheimer's disease (AD) neuropathology which includes senile plaques and neurofibrillary tangles. Inflammation and innate immunity are key players in AD and DS. Triggering receptor expressed in myeloid cells-2 (TREM2) variants have been identified as risk factors for AD and other neurodegenerative diseases...
December 16, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29239119/a-retrospective-review-of-acute-myeloid-leukaemia-in-35-dogs-diagnosed-by-a-combination-of-morphologic-findings-flow-cytometric-immunophenotyping-and-cytochemical-staining-results-2007-2015
#9
L L Davis, K R Hume, T Stokol
Acute myeloid leukaemia (AML) is an uncommon, rapidly progressive neoplasm in dogs. The aim of this retrospective study was to characterize the clinical presentation, haematologic findings, diagnostic imaging results, treatment and survival time of a contemporary cohort of dogs with AML. Diagnosis was based on >20% blasts in bone marrow or blood identified as myeloid based on morphologic findings, flow cytometric immunophenotyping and cytochemical staining. Medical records of 35 dogs diagnosed with AML from 2007 to 2015 were included...
December 14, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/29237319/fibrous-nanocellulose-crystalline-nanocellulose-carbon-nanotubes-and-crocidolite-asbestos-elicit-disparate-immune-responses-upon-pharyngeal-aspiration-in-mice
#10
Eun-Jung Park, Timur O Khaliullin, Michael R Shurin, Elena R Kisin, Naveena Yanamala, Bengt Fadeel, Jaerak Chang, Anna A Shvedova
With the rapid development of synthetic alternatives to mineral fibers, their possible effects on the environment and human health have become recognized as important issues worldwide. This study investigated effects of four fibrous materials, i.e. nanofibrillar/nanocrystalline celluloses (NCF and CNC), single-walled carbon nanotubes (CNTs), and crocidolite asbestos (ASB), on pulmonary inflammation and immune responses found in the lungs, as well as the effects on spleen and peripheral blood immune cell subsets...
December 2018: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/29226651/quantitative-distinction-of-morphological-characteristics-of-white-blood-cells-in-peripheral-blood-through-texture-analysis-using-gray-level-co-occurrence-matrix
#11
Mai Yamamoto, Keigo Kono, Maiko Kuroki, Satoru Murakami, Ruka Hayata, Kana Nanato, Minrong Shao, Keiko Miwa, Yutaka Tsutsumi, Kazunori Okada, Sanae Kaga, Nobuo Masauzi
BACKGROUND: Texture features are valuable clues for skilled technicians to differentiate peripheral blood (PB) white blood cells (WBCs). Some studies have tried to distinguish WBCs automatically by using texture analysis. However, no study so far has applied a gray level co-occurrence matrix (GLCM) to images of PB WBCs. Here, we developed a new GLCM method, called the CM-Tx method, for automatically distinguishing PB WBCs. METHODS: We used a total of 199 images of six different types of PB WBCs, taken from PB smears of 12 healthy volunteers, as objective standard images for the analysis...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29225136/in-vitro-apoptotic-mechanism-of-a-novel-synthetic-quinazolinyl-derivative-induces-caspase-dependent-intrinsic-pathway-on-thp-1-leukemia-cell-line
#12
V Sridhar, S K Arepalli, L R Velatooru, J Venkateswara Rao, P Kavin Kennedy, B Narsaiah
Several quinazoline derivatives have been found to possess a broad spectrum of biological activities. Previously our research group has synthesized and studied the anti-proliferative effects of N-Decyl-N-(2-Methyl-4-Quinazolinyl) Amine (DMQA). The current study evaluated the cytotoxic and apoptotic properties of DMQA in THP-1 cells. The cytotoxic potential of DMQA was assessed using MTT assay on a panel of cancer cell lines which include HeLa, Mia PaCa-2, A 375, B16-F10, A 549,A 431, U937, THP-1, HL-60 and peripheral blood mononuclear cells (PBMC's)...
December 7, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29223571/noval-nitroaromatic-compound-activates-autophagy-and-apoptosis-pathways-in-hl60%C3%A2-cells
#13
Gabriele Mendes M C Perdigão, Marcela Silva Lopes, Lucas Bonfim Marques, Pedro Henrique Dias Moura Prazeres, Kamila de Sousa Gomes, Renata Barbosa de Oliveira, Mauro Cunha Xavier Pinto, Elaine Maria de Souza-Fagundes
N-(2-butanoyloxyethyl)-4-(chloromethyl)-3-nitrobenzamide (NBCN) is a nitroaromatic bioreductible compound with cytotoxic effects in cancer cells lines. The aim of this work was investigated the molecular mechanisms involved in cell death promoted by NBCN on HL60 cells line. We observed that NBCN treatment increased intracellular ROS, reduced mitochondria membrane potential (ΔΨm). The treatment also induced morphological changes, phosphatidylserine exposure, cell cycle arrest in G2/M-phase, DNA condensation and fragmentation in HL60 cells, but did not showed cytotoxic effects on normal human peripheral blood mononuclear cells (PBMC)...
December 6, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29214694/myelodysplastic-syndromes-2018-update-on-diagnosis-risk-stratification-and-management
#14
Guillermo Montalban-Bravo, Guillermo Garcia-Manero
DISEASE OVERVIEW: The myelodysplastic syndromes (MDS) are a very heterogeneous group of myeloid disorders characterized by peripheral blood cytopenias and increased risk of transformation to acute myelogenous leukemia (AML). MDS occurs more frequently in older males and in individuals with prior exposure to cytotoxic therapy. DIAGNOSIS: Diagnosis of MDS is based on morphological evidence of dysplasia upon visual examination of a bone marrow aspirate and biopsy. Information obtained from additional studies such as karyotype, flow cytometry or molecular genetics is usually complementary and may help refine diagnosis...
January 2018: American Journal of Hematology
https://www.readbyqxmd.com/read/29211354/correlations-between-iron-content-in-knee-joint-tissues-and-chosen-indices-of-peripheral-blood-morphology
#15
Barbara Brodziak-Dopierała, Wojciech Roczniak, Agata Jakóbik-Kolon, Joanna Kluczka, Bogdan Koczy, Jerzy Kwapuliński, Magdalena Babuśka-Roczniak
BACKGROUND: Iron as a cofactor of enzymes takes part in the synthesis of the bone matrix. Severe deficiency of iron reduces the strength and mineral density of bones, whereas its excess may increase oxidative stress. In this context, it is essential to determine the iron content in knee joint tissues. OBJECTIVES: The study objective was to determine the level of iron in the tissues of the knee joint, i.e., in the femoral bone, tibia and meniscus. MATERIAL AND METHODS: Material for analysis was obtained during endoprosthetic surgery of the knee joint...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29206488/structural-and-functional-evidence-for-the-scaffolding-effect-of-alveolar-blood-vessels
#16
Barry C Gibney, Willi L Wagner, Alexandra B Ysasi, Janeil M Belle, Akira Tsuda, Maximilian Ackermann, Steven J Mentzer
A contribution of pulmonary blood distension to alveolar opening was first proposed more than 100 years ago. To investigate the contribution of blood distension to lung mechanics, we studied control mice (normal perfusion), mice after exsanguination (absent perfusion) and mice after varying degrees of parenchymal resection (supra-normal perfusion). On inflation, mean tracheal pressures were higher in the bloodless mouse (4.0 ± 2.5 cm H2O); however, there was minimal difference between conditions on deflation (0...
December 5, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29202409/a-fluorine-scan-of-a-tubulin-polymerization-inhibitor-isocombretastatin-a-4-design-synthesis-molecular-modelling-and-biological-evaluation
#17
Timothée Naret, Jérôme Bignon, Guillaume Bernadat, Mohamed Benchekroun, Helene Levaique, Christine Lenoir, Joelle Dubois, Alain Pruvost, François Saller, Delphine Borgel, Boris Manoury, Veronique Leblais, Romain Darrigrand, Sébastien Apcher, Jean-Daniel Brion, Etienne Schmitt, Frédéric R Leroux, Mouad Alami, Abdallah Hamze
A novel series of tubulin polymerization inhibitors, based on fluorinated derivatives of isocombretastatin A-4 was synthesized with the goal of evaluating the effect of these compounds on the proliferative activity. The introduction of fluorine atom was performed on the phenyl ring or at the linker between the two aromatic rings. The modification of isoCA-4 by introduction of difluoromethoxy group at the para-position (3i) and substitution of the two protons of the linker by two fluorine atoms (3m), produced the most active compounds in the series, with IC50 values of 0...
December 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29184672/new-insights-in-non-small-cell-lung-cancer-circulating-tumor-cells-and-cell-free-dna
#18
REVIEW
Elena Duréndez-Sáez, Aitor Azkárate, Marina Meri, Silvia Calabuig-Fariñas, Cristóbal Aguilar-Gallardo, Ana Blasco, Eloisa Jantus-Lewintre, Carlos Camps
Lung cancer is the second most frequent tumor and the leading cause of death by cancer in both men and women. Increasing knowledge about the cancer genome and tumor environment has led to a new setting in which morphological and molecular characterization is needed to treat patients in the most personalized way in order to achieve better outcomes. Since tumor products can be detected in body fluids, the liquid biopsy, particularly, peripheral blood, has emerged as a new source for lung cancer biomarker's analysis...
October 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29184215/social-stress-induces-neurovascular-pathology-promoting-depression
#19
Caroline Menard, Madeline L Pfau, Georgia E Hodes, Veronika Kana, Victoria X Wang, Sylvain Bouchard, Aki Takahashi, Meghan E Flanigan, Hossein Aleyasin, Katherine B LeClair, William G Janssen, Benoit Labonté, Eric M Parise, Zachary S Lorsch, Sam A Golden, Mitra Heshmati, Carol Tamminga, Gustavo Turecki, Matthew Campbell, Zahi A Fayad, Cheuk Ying Tang, Miriam Merad, Scott J Russo
Studies suggest that heightened peripheral inflammation contributes to the pathogenesis of major depressive disorder. We investigated the effect of chronic social defeat stress, a mouse model of depression, on blood-brain barrier (BBB) permeability and infiltration of peripheral immune signals. We found reduced expression of the endothelial cell tight junction protein claudin-5 (Cldn5) and abnormal blood vessel morphology in nucleus accumbens (NAc) of stress-susceptible but not resilient mice. CLDN5 expression was also decreased in NAc of depressed patients...
December 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/29181263/cytogenetic-study-is-not-essential-in-patients-with-aplastic-anemia
#20
Atreyee Dutta, Rajib De, Tuphan K Dolai, Pradip K Mitra, Ajanta Halder
Depending on contemporary treatment approach of aggressive immunosuppression, Aplastic Anemia (AA) is caused by immunological destruction of otherwise normal hematopoietic stem cells. The aim was to summarize the cytogenetic abnormalities in AA patients and the frequency of Fanconi Anemia (FA) in morphologically normal AA patients in eastern India. Ethical clearances were obtained from both institutions involved in this study. Out of 72800 patients attending the outpatient department, 520 pancytopenia patients were screened for AA after Bone marrow (BM) aspiration and biopsy...
2017: American Journal of Blood Research
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